fix: try/finally on pollStatus to handle throws from timeout

[mshanemc]

What does this PR do?

try/finally on pollStatus for both mdapi:deploy:report and source:deploy:report
after the deploy times out, it uses the this.report one more time to get a good in-progress DeployResult

What issues does this PR fix or reference?

forcedotcom/cli#1612
@W-11431588@

QA notes

I used EDA to get a really slow deploy like the customer has

# eda is weird with its scratch orgs and namespace, so
sfdx force:org:create -d 1 -f orgs/dev.json --nonamespace -s
# convert source for mdapi deploy
sfdx force:source:convert -d force-app --outputdir=mdapiOut

steps based on the customer's logic. Have these ready to copy/paste quickly

../../plugin-source/bin/dev force:mdapi:deploy --deploydir mdapiOut --ignorewarnings -w 0 --testlevel RunLocalTests --json
# but use the job id from your deploy
../../plugin-source/bin/dev force:mdapi:deploy:report -i 0Af1k00001PyBXhCAN --wait 1 --json
# verifying fix for source:deploy
../../plugin-source/bin/dev force:source:deploy:report -i 0Af1k00001PyBXhCAN --wait 1 --json